Heat and Temperature

The heat from a lamp allows a lizard to remain warm. This is an example of which type of heat transfer?

• radiation
• conduction
• convection
• insulation

What is the definition of CONDUCTION?

• When heat is transferred from objects like rays of light or electromagnetically.
• a  hot liquid or air that  expands, becomes less dense, and rises or becomes more dense, and sinks.
• When heat transfers from objects that are touching.
• When heat transfers through the heater or AC in your house.

Tags

NGSS.MS-PS1-4

What is the definition of CONVECTION

• When heat transfers through waves.

• When heat transfers from objects that are touching.

• warm fluid rises; cool fluid sinks

• Heat traveling from the sun

Warm air is __________ dense than cold air and rises creating convection currents.

• more
• less

Tags

NGSS.MS-ESS2-6

What is the BEST example of a conductor? 

• A wooden block
• A ceramic mug
• A glass cup
• A metal bowl

An insulator . . .

• Allows a lot of heat to escape
• Makes the temperature of an object rise
• Moves heat from one place to another
• Traps heat inside an object

Tags

NGSS.MS-PS3-3

The faster an object moves, the ________ kinetic energy it has. 

• more
• less
• none of the above
• all of the above 

Tags

NGSS.MS-PS3-1

Which of the following containers of sand has atoms/molecules with the greatest average kinetic energy?  

• 1 kg at 20^oC
• 2 kg at 20^oC
• 4 kg at 20^oC
• none has a greater amount because all have the same average kinetic energy

Tags

NGSS.MS-PS3-1

Thermal energy always moves from ___________ to __________.

• Hot to Hot
• Cold to hot
• Warmer to cooler
• Cooler to warmer

Tags

NGSS.HS-PS3-4

When would an object left in a room temperature room stop transferring heat?

• When it has reached the same temperature as the room temperature air

• When it has lost all of its thermal energy

• When it has gained all of the air's thermal energy

• When it has gained or lost all of it's coldness to the air